Ben, Chan Chong Choon
Sweet & Maxwell Asia, 2006
Buku Teks
university of Malaya Press, [date of publication not identified]
Buku Teks
Rachagan, Shanthy, author
LexisNexis, 2010
Buku Teks
editor, Andi Hamzah
Ghalia Indonesia, 1987
Buku Teks
Tan Sri Mohamed Suffian Bin Hashim, author
Jabatan Chetak Kerajaan, 1972
Buku Teks